(19)
(11) EP 0 419 178 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.08.1991 Bulletin 1991/32

(43) Date of publication A2:
27.03.1991 Bulletin 1991/13

(21) Application number: 90310144.2

(22) Date of filing: 17.09.1990
(51) International Patent Classification (IPC)5: B41J 2/05, B41J 2/365
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30) Priority: 18.09.1989 JP 241027/89
27.10.1989 JP 280166/89

(71) Applicant: CANON KABUSHIKI KAISHA
Tokyo (JP)

(72) Inventors:
  • Koizumi, Ryoichi, c/o Canon K.K.
    Tokyo (JP)
  • Saito, Asao, c/o Canon K.K.
    Tokyo (JP)
  • Takayanagi, Yoshiaki, c/o Canon K.K.
    Tokyo (JP)

(74) Representative: Beresford, Keith Denis Lewis et al
BERESFORD & Co. 2-5 Warwick Court High Holborn
London WC1R 5DJ
London WC1R 5DJ (GB)


(56) References cited: : 
   
       


    (54) Ink jet recording


    (57) The present invention provides an ink jet recording head (10) comprising an ink discharging portion having a discharge opening for discharging ink, a substrate (14) having an electrical/thermal converting element for generating thermal energy supplied to the ink discharging portion and used to discharge the ink, and a temperature detecting element (13), and an information bearing means (17) for carrying information providing the feature of the temperature detecting element.






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